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LibWeb: Treat '<' characters as part of the text inside <script>

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When we encounter a '<' during HTML parsing, we now look ahead to see
if there is a full </script> coming, otherwise we treat it as text.

This makes it possible to use '<' in inline scripts. :^)
This commit is contained in:
Andreas Kling 2020-04-04 21:01:58 +02:00
parent fc5067afd2
commit 42f47da75d
Notes: sideshowbarker 2024-07-19 07:56:07 +09:00
1 changed files with 19 additions and 4 deletions
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23
Libraries/LibWeb/Parser/HTMLParser.cpp
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@ -174,10 +174,26 @@ static bool parse_html_document(const StringView& html, Document& document, Pare
switch (state) {
case State::Free:
if (ch == '<') {
is_slash_tag = false;
move_to_state(State::BeforeTagName);
break;
bool should_treat_as_text = false;
if (node_stack.last().tag_name() == "script") {
bool is_script_close_tag = peek(1) == '/'
&& tolower(peek(2)) == 's'
&& tolower(peek(3)) == 'c'
&& tolower(peek(4)) == 'r'
&& tolower(peek(5)) == 'i'
&& tolower(peek(6)) == 'p'
&& tolower(peek(7)) == 't'
&& tolower(peek(8)) == '>';
if (!is_script_close_tag)
should_treat_as_text = true;
}
if (!should_treat_as_text) {
is_slash_tag = false;
move_to_state(State::BeforeTagName);
break;
}
}
if (ch != '&') {
text_buffer.append(ch);
} else {
@ -394,5 +410,4 @@ RefPtr<Document> parse_html_document(const StringView& html, const URL& url)
return document;
}
}